12712860477 has 12 divisors (see below), whose sum is σ = 18365833980. Its totient is φ = 8473941888.

The previous prime is 12712860473. The next prime is 12712860487. The reversal of 12712860477 is 77406821721.

12712860477 is a `hidden beast` number, since 1 + 27 + 12 + 8 + 604 + 7 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2304576036 + 10408284441 = 48006^2 + 102021^2 .

It is not a de Polignac number, because 12712860477 - 2² = 12712860473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12712860473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44202 + ... + 165467.

It is an arithmetic number, because the mean of its divisors is an integer number (1530486165).

Almost surely, 2^12712860477 is an apocalyptic number.

It is an amenable number.

12712860477 is a deficient number, since it is larger than the sum of its proper divisors (5652973503).

12712860477 is a wasteful number, since it uses less digits than its factorization.

12712860477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216412 (or 216409 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The spelling of 12712860477 in words is "twelve billion, seven hundred twelve million, eight hundred sixty thousand, four hundred seventy-seven".